# 作者：小七
# 2024年12月26日
a = 10
b = 5.5
c = True
d = "hello world"
print(a, b, c, d)
print(type(a), type(b), type(c), type(d))
print(bin(a), oct(a), hex(a))

sum = 0
for num in range(1, 101):
    if num % 2 != 0:
        sum = sum + num

print(sum)

for i in range(1, 10):
    for j in range(1, i + 1):
        print(f"{j} * {i} = {i * j}", end="\t")
    print()
